should crispen
Regular verb: crispen - crispened- crispened

Affirmation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I'd crispen
you'd crispen
he'd crispen
we'd crispen
you'd crispen
they'd crispen 	I'd be crispening
you'd be crispening
he'd be crispening
we'd be crispening
you'd be crispening
they'd be crispening	I should've crispened
you should've crispened
he should've crispened
we should've crispened
you should've crispened
they should've crispened	I should've been crispening
you should've been crispening
he should've been crispening
we should've been crispening
you should've been crispening
they should've been crispening	

Negation 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
I shouldn't crispen
you shouldn't crispen
he shouldn't crispen
we shouldn't crispen
you shouldn't crispen
they shouldn't crispen 	I shouldn't be crispening
you shouldn't be crispening
he shouldn't be crispening
we shouldn't be crispening
you shouldn't be crispening
they shouldn't be crispening	I shouldn't have crispened
you shouldn't have crispened
he shouldn't have crispened
we shouldn't have crispened
you shouldn't have crispened
they shouldn't have crispened	I shouldn't have been crispening
you shouldn't have been crispening
he shouldn't have been crispening
we shouldn't have been crispening
you shouldn't have been crispening
they shouldn't have been crispening	

Interrogative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
should I crispen?
should you crispen?
should he crispen?
should we crispen?
should you crispen?
should they crispen? 	should I be crispening?
should you be crispening?
should he be crispening?
should we be crispening?
should you be crispening?
should they be crispening? 	should I have crispened?
should you have crispened?
should he have crispened?
should we have crispened?
should you have crispened?
should they have crispened? 	should I have been crispening?
should you have been crispening?
should he have been crispening?
should we have been crispening?
should you have been crispening?
should they have been crispening? 	

Interro-negative form 	
Simple form 	V-ing form 	Perfect 	V-ing perfect 	
shouldn't I crispen?
shouldn't you crispen?
shouldn't he crispen?
shouldn't we crispen?
shouldn't you crispen?
shouldn't they crispen? 	shouldn't I be crispening?
shouldn't you be crispening?
shouldn't he be crispening?
shouldn't we be crispening?
shouldn't you be crispening?
shouldn't they be crispening? 	shouldn't I have crispened?
shouldn't you have crispened?
shouldn't he have crispened?
shouldn't we have crispened?
shouldn't you have crispened?
shouldn't they have crispened? 	shouldn't I have been crispening?
shouldn't you have been crispening?
shouldn't he have been crispening?
shouldn't we have been crispening?
shouldn't you have been crispening?
shouldn't they have been crispening?